[  486.520467] netdevsim netdevsim271 eni271np1: renamed from eth0
[  486.521173] netdevsim netdevsim563 eni563np1: renamed from eth1
[  486.616175] Could not find device with ifindex 2000 in netnsfd 11
[  486.616319] Could not find netns with fd: 2000
[  486.616431] Cannot link a netdevsim to itself
[  486.616555] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).